BYK® -W 985

BYK®-W 985 by BYK is a wetting and dispersing additive for ambient-curing resin systems to reduce the viscosity in mineral-filled systems. It increases the wetting and dispersing speed of all standard fillers such as calcium carbonate and aluminum hydroxide in unsaturated polyester resins, PU- and epoxy resins. It reduces the viscosity considerably which enables higher filler content. Generally, it does not prevent the settling of fillers. A gelling can occur in cobalt-accelerated UP resins. This can be offset by increasing the quantity of cobalt. The recommended level is 0.5-1.5% additive based upon the filler. BYK®-W 985 is listed in EINECS, TSCA, AICS, PICCS, IECSC, ENCS, NZIoC and ECSI. It is in line with Directive 2011/65/EU (EU RoHS 2), as amended by the Delegated Directive (EU) 2015/863 (EU RoHS 3), EU Directive 2002/96/EC (WEEE), EU Directive 94/62/EC (Packaging Waste) and CONEG Toxics in Packaging. It complies with REACH Regulation (EC) No 1907/2006. The shelf life of this product is 60 months.